6852509 has 4 divisors (see below), whose sum is σ = 6874716. Its totient is φ = 6830304.

The previous prime is 6852499. The next prime is 6852533. The reversal of 6852509 is 9052586.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1968409 + 4884100 = 1403^2 + 2210^2 .

It is a cyclic number.

It is not a de Polignac number, because 6852509 - 2²⁰ = 5803933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6852569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10634 + ... + 11259.

It is an arithmetic number, because the mean of its divisors is an integer number (1718679).

Almost surely, 2^6852509 is an apocalyptic number.

It is an amenable number.

6852509 is a deficient number, since it is larger than the sum of its proper divisors (22207).

6852509 is a wasteful number, since it uses less digits than its factorization.

6852509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22206.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 6852509 is about 2617.7297415891. The cubic root of 6852509 is about 189.9400457188.

The spelling of 6852509 in words is "six million, eight hundred fifty-two thousand, five hundred nine".